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In-Cycle Closed Loop Control Of The Fuel Injection On A 1-Cylinder Heavy Duty Ci-Engine

Zander, Claes-Göran LU ; Tunestål, Per LU ; Stenlåås, Ola LU and Johansson, Bengt LU (2010) Fall Technical Conference of the ASME Internal Combustion Engine Division, 2010 In Proceedings of the ASME Internal Combustion Engine Division Fall Technical Conference p.405-414
Abstract
The focus of this article is on implementation of real time combustion control by using an FPGA. The feedback used for the controller is the heat release. Due to the desire to avoid using division on the FPGA an alternative way of calculating the polytropic exponent is investigated. When this method is compared against using a constant exponent it shows less fluctuations in regards to cycle to cycle variations when calculating the heat release. A dual injection strategy is used and real time control is implemented on the second fuel injection. The calculated heat release is continuously compared with a reference and then the difference is converted to a duration correction of the filet injection. This is done by a proportional controller... (More)
The focus of this article is on implementation of real time combustion control by using an FPGA. The feedback used for the controller is the heat release. Due to the desire to avoid using division on the FPGA an alternative way of calculating the polytropic exponent is investigated. When this method is compared against using a constant exponent it shows less fluctuations in regards to cycle to cycle variations when calculating the heat release. A dual injection strategy is used and real time control is implemented on the second fuel injection. The calculated heat release is continuously compared with a reference and then the difference is converted to a duration correction of the filet injection. This is done by a proportional controller which is initiated after the start of the second injection. By adding a perturbation on the first fuel injection the controller is shown to compensate during the second and thereby decreasing the cycle to cycle variations. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of the ASME Internal Combustion Engine Division Fall Technical Conference
pages
405 - 414
publisher
American Society Of Mechanical Engineers (ASME)
conference name
Fall Technical Conference of the ASME Internal Combustion Engine Division, 2010
external identifiers
  • WOS:000290505600040
  • Scopus:80054776006
ISBN
978-0-7918-4944-6
DOI
10.1115/ICEF2010-35100
language
English
LU publication?
yes
id
528df574-a4f2-4b07-b8ad-96bee8720ebc (old id 1984594)
date added to LUP
2011-07-11 10:13:43
date last changed
2016-10-13 04:48:05
@misc{528df574-a4f2-4b07-b8ad-96bee8720ebc,
  abstract     = {The focus of this article is on implementation of real time combustion control by using an FPGA. The feedback used for the controller is the heat release. Due to the desire to avoid using division on the FPGA an alternative way of calculating the polytropic exponent is investigated. When this method is compared against using a constant exponent it shows less fluctuations in regards to cycle to cycle variations when calculating the heat release. A dual injection strategy is used and real time control is implemented on the second fuel injection. The calculated heat release is continuously compared with a reference and then the difference is converted to a duration correction of the filet injection. This is done by a proportional controller which is initiated after the start of the second injection. By adding a perturbation on the first fuel injection the controller is shown to compensate during the second and thereby decreasing the cycle to cycle variations.},
  author       = {Zander, Claes-Göran and Tunestål, Per and Stenlåås, Ola and Johansson, Bengt},
  isbn         = {978-0-7918-4944-6},
  language     = {eng},
  pages        = {405--414},
  publisher    = {ARRAY(0xa0d4098)},
  series       = {Proceedings of the ASME Internal Combustion Engine Division Fall Technical Conference},
  title        = {In-Cycle Closed Loop Control Of The Fuel Injection On A 1-Cylinder Heavy Duty Ci-Engine},
  url          = {http://dx.doi.org/10.1115/ICEF2010-35100},
  year         = {2010},
}